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1. DE102010000885 - Inductive load i.e. electromagnetic pressure regulator, current controlling method for automated gear box of motor car, involves actuating current output stage according to determined controller equation

Office Germany
Application Number 102010000885
Application Date 14.01.2010
Publication Number 102010000885
Publication Date 21.07.2011
Publication Kind A1
IPC
H01F 7/18
HELECTRICITY
01BASIC ELECTRIC ELEMENTS
FMAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
7Magnets
06Electromagnets; Actuators including electromagnets
08with armatures
18Circuit arrangements for obtaining desired operating characteristics, e.g. for slow operation, for sequential energisation of windings, for high-speed energisation of windings
CPC
H01F 7/1844
HELECTRICITY
01BASIC ELECTRIC ELEMENTS
FMAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
7Magnets
06Electromagnets; Actuators including electromagnets
08with armatures
18Circuit arrangements for obtaining desired operating characteristics, e.g. for slow operation, for sequential energisation of windings, for high-speed energisation of windings
1844Monitoring or fail-safe circuits
H01F 2007/1888
HELECTRICITY
01BASIC ELECTRIC ELEMENTS
FMAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
7Magnets
06Electromagnets; Actuators including electromagnets
08with armatures
18Circuit arrangements for obtaining desired operating characteristics, e.g. for slow operation, for sequential energisation of windings, for high-speed energisation of windings
1888using pulse width modulation
Applicants ZAHNRADFABRIK FRIEDRICHSHAFEN
Inventors DAMME PIERRE
NOVAK RAINER
Title
(EN) Inductive load i.e. electromagnetic pressure regulator, current controlling method for automated gear box of motor car, involves actuating current output stage according to determined controller equation
Abstract
(EN)

The method involves determining a differential equation for a controlled variable e.g. actual current, depending on track parameters e.g. temperature-dependent resistances, and a pulse-width modulation duty factor based on a concept of electrical track. Another differential equation for a deviation between a target current and the actual current is defined. A controller equation is determined based on a determined differential equation system of second order before applied to an input output linearization principle. A current output stage (3) is actuated according to the controller equation. The track parameter is an operating point-dependent inductance or power supply voltage. An independent claim is also included for a circuit configuration for current control for inductive loads.